Seismic Evaluation of the Towers of Aqaba-Amman 400 KV Overhead Transmission Line.

Document Type : Research Studies

Authors

1 Professor of Electrical Engineering and Technology., University of Jordan., Amman., Jordan.

2 Professor of Scisinology., Faculty of Science., University of Jordan., Amman., Jordan.

3 Associate Professor of Civil Engineering Department., Faculty of Engineering and Technology., University of Jordan., Amman., Jordan.

4 Assistant Professor of Civil Engineering Department., Faculty of Engineering and Technology., University of Jordan., Amman., Jordan.

Abstract

Seismicity and seismotectonic information indicate that destructive earth quakes (M ≤ 6)lave occurred all along the Jordan-Dead Sea transform and are likely to occur in the future. Any large future earthquakes chat may occur between the Dead Sea and the Gulf of Aqaba will affect the towers and connections of this power line. Distances to the towers. will vary from a few tens of kms to more than 200 km. The frequency band analysis of the towers is presented. finite element technique is utilized as a solver for the free vibration of these lowers. Only the  frequencies of the first five modes associated with the free oscillation of the lowers are determined at thus stage. These are compared with frequencies of broth ne body and surface waves associated will local earthquakes as recorded on the university of Jordan Seisinological Station (UNJ). This comparison reveals partial correlation between the frequencies of the structures and weir supporting ground. This un. plies that in the event of severe earthquakes the resonant response with all of its destructive consequences is to be expected. 
 
 

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MEJ- Mansoura Engineering Journal
Volume 17, Issue 2
VOL 17 has two issues issue 2 consist of two parts from (March to June)
June 1992
Pages 24-41

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